X
Press RES/+ button ; briefly.
The cruise control resumes the
previously set speed.
i The last set speed stored in memory is
deleted when the engine is turned off.
Changing the set speed You must have set a speed prior to
increasing or decreasing the current
speed.
i
Depressing the accelerator pedal does
not deactivate the cruise control. After
a brief acceleration (e.g. for passing),
the cruise control will resume the last
set speed.
Continuous adjustment
X Press and hold RES/+ button ; to
increase the speed.
or
X Press and hold SET/− = to decrease the
speed.
X Press and hold the respective button
until the desired speed is reached.
X Release the respective button.
The new speed is stored.
Adjustment in 1 mph (Canada 1 km/h)
increments
X Press RES/+ button ; briefly to increase
the speed.
or
X Press SET/− = briefly to decrease the
speed.
The new speed is stored after releasing the
respective button. HVAC (Heating, Ventilation, Air
Conditioning)
Notes on HVAC
G
WARNING
Follow the recommended settings for
heating
and cooling given on the following
pages. Otherwise the windows could fog up,
impairing visibility and endangering you
and others.
Air conditioning with climate control* The air conditioning improves the level of
comfort when driving at high outside
temperatures by cooling and
dehumidifying the air.
Nearly all dust particles, pollutants, are
filtered out by an integrated particle
filter before outside air enters the
passenger compartment through the air
distribution
system. It also operates when
the air conditioning is switched off and
you have switched on the blower.
The air conditioning only works when the
engine is running and the blower is
switched on. Maximum effectiveness is
achieved if you drive with the windows
closed.
i In warmer weather, ventilate the
passenger compartment for a short
period of time before utilizing the air
conditioning. 102
HVAC (Heating, Ventilation, Air Conditioning)>> Controls.
* optional
Capacities
Components Model Capacity Fuels, coolants, lubricants,
etc.
Engine with oil
filter All models 3.5 US qt (3.3 l) Approved engine oils
Cooling system All models approx. 4.5 US qt (4.3 l) Anticorrosion/Antifreeze
meeting specification
MB 325.0
Fuel tank All models 8.72 US gal (33.0 l) Premium unleaded gasoline
(Minimum Posted Octane 91
[Avg. of 96 RON/86 MON])
Fuel tank
reserve All models approx. 1.32 US gal (5.0 l)
Air
conditioning
system* All models — R134a refrigerant and
special PAG lubricant oil
(never R 12)
Windshield
washer system All models 4.0 US qt (3.8 l) Windshield washer
concentrate
27
(Y page 222)
Washer fluid mixing ratio
(Y page 222) Engine oils
Engine oils are specifically tested for
their suitability in our engines and
durability for our service intervals.
Therefore, only use engine oils and oil
filters required for vehicles with the
Maintenance System. For a listing of
approved engine oils and oil filters
contact an authorized smart center.
! Using engine oils and oil filters of
specification
other than those expressly
required for the Maintenance System, or
changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System will result in
engine or emission control system
damage not covered by the smart Limited
Warranty. Please follow Maintenance System
recommendations for scheduled oil
changes. Failure to do so will result in
engine or emission control system
damage
not covered by the smart Limited
Warranty.
Viscosity grades for engine oils Using the chart below, select oil viscosity
according to the lowest air temperature
expected before the next oil change.
27 Use a windshield washer concentrate labeled for summer and water for temperatures above freezing
point
or a windshield washer concentrate labeled for winter and water for temperatures below freezing
point. 220
Service fluids and capacities
>> Technical data.
* optional
